Automatic pistol



Now. 25 1924' P. R. KRAMER AUTOMATIC PISTOL Filed y 19v 1923 4Sheets-Sheet 1 INVENTQR P we' m f a (.M

ATTORNEY 1,516,972 F. R. KRAMER I AUTOMAT IC PI STOL Filed y 19. 1923q'sheets-sheat. 2

P. R. KRAMER AUTOMATIC PISTOL 1923 4 Sheets-Sheet 3 INVENTOR ATRNEY Nmr.25 1924- P. R. KRAMER AUTOMATIC PISTOL Filed y 19 1923 4 Sheets-Sheet 4INVENTOR Patented Nov 25,

lI-IILLI? B; KRAMER, OF BAY GIT-Y, MICHIGAN.

AUTOMATIC PISTOL.

Applicationxfiled May 19, 1923.

To (4Z5 whom it may concern:

lie it known that I, PHILmr Karim-En, a citizen ofathc United States ofAmerica, and a resident of City, in the country of Bay and State ofMichigan, have invented certain new and useful Improvements in AutomaticPistols, of which the following is a specification.

This inrention relates to automatic pistols and the like.

One objector" the invention is tox'desi'gn an improved automatic pistolin which/the barrel is rigidly attached to the frame or stock, therebyinsuring steady andaccurate shooting.

Another object of the invent-ion is toproride an automatic iPlSt'Olwhich can be quickly and easily cooked with but one hand.

A further object is to design a pistol in which the. shell magazrneorchamber .is 'located. near the handle, and is so, balanced that it canbe readily carriedv in. a ho'lster without falling out.

A still further object is toproi-"ide an improved trigger actuatingmechanism, :so that a shell cannot be discharged until-it is :properlayseated in. the barrel and the mechanism is in proper position.

A zturtl'ier object still isto provide a new and novel feed for forcingthe cartridges 'lr the magazine into the barrel.

is i th, the above and; other objects in 'VlQW, the present "inventionconsists in the combination and arrangements of pain-s, hereafter morefully described, illustrated in the accompanying drawings, andparticularly pointed out in the appended claims, it being understoodthat changes may be made in the tliorm, size, proportion, and minordetails of construction, witl'iout departing from the spirit, orsacrificingany of the ad-v vantages of the invention.

In the drawings:

Fig. -1. is a side View of my improved automatic pistol.

Fig. 2 is a part sectional side view thereof.

Fig. 3 is :a front View looking into the mouth of the barrel.

r 1g. 4 is a part sectional side View of the breech block.

Fig. 5 is an end View thereof.

Fig. 6 is a section taken on the line, 6-6 of Figure 5.

Serial No. 640,092.

.uig. '7 is a transverse Sectional View taken on the line 7+7 ot Fig. 2.

Fig. Sis a view ol the breech blockand shell ejecting :n'ieans turned atan angle, the mechanism being shown in two different positions.

Fig.10 is an end View 'lhereota Fig. 11 is an opposite end View.

Fig.1? is a section. taken on the line 12il=2 ofl igure 9;

Fig. l3 is. a side View of the screw which serves asza; screw drivertool.

Fig. 14 is an end View thereof.

is aside view of the trigger mechanism shown in two different positionsviz, the full lines illustrating the trigger cooked, and dotted linesshowing the position the mechanism assumes after firing.

Rig. 16 :is an isometric view of the timing member.

Fig. 17 is :also an isometric VlQW of the trip timing leven.

Fag. IS isa pairtvseotional: side View illustrating the means forlimiting the anorement of the firingipin.

Automatic pistols ingeneral use today are so constructed that the barrelquickly becomes loose and Wiggly, consequently accurate shooting isimpossible, is also necessary to first cook the weapon for the firstshot, tlrisoperation. requires both hands, and it will be obvious thatin an emergency and when the 'istolshould be ready for instant use, itmust first be cooked which requires the useoaf both hands, otherwise itmust be carried cocked which is a dangerous practice both to the ownerand persons in the immediate vicinity.

These objectionable features I have overcome in my improved automaticpistol, and I have further designed it so that it will fitin and can bereadily carried in the couventionafl holster witl-iout slipping out orfalling therefrom.

Refiierring now pzn'ticularly to the drawings in which I have shown theprefer-red embodiment of my invention. The nu n-ieral 1 indicates theframe of the pistol which is provided with a cylindrical shell magazine2 formed integral therewith. A hand stock 3 is detachably secured to.the frame by means of the screws- 4 and 5, the trigger and triggeractuating mechanism being mounted thereon in a manner to be presentlydescribed. A barrel 6 is threaded into the frame as shown and isprovided with a sight 7 in the usual manner.

A cylindrical sleeve 8 is mounted in the frame and a breech block 9 isslidably mounted therein, this breech block being formed with downwardlyprojecting lugs 10 to which a recoil tension rod 11 is pivot-allysecured, the free end of the said rod being threaded, and is adapted toengage the threaded end of a telescoping sleeve nut 12, one end of whichis in turn received within the hollow cylindrical member 13, theopposite end being provided with a large annular portion 14: which isfitted to the end of the shell magazine. A recoil spring 14 is carriedon the rod 11 and is interposed between the ends thereof.

A spring actuated feed wing 15 is mounted on this rod 11, the end or hub15 being turned to a smaller diameter, and a flat spring member 16 iswound thereon, the feed wing 15 normally lies against the breech blockwhen the magazine is empty as clearly shown in Figure- 2, but when theshells 17 are inserted in the magazine, the wing is forced around toposition as clearly shown in the Figure 7, tensioning the spring 16which naturally has a tendency to exert a continuous pressure againstthe shell, forcing them upwardly and against the breech block whichcarries it into position in the barrel when the mechanism is actuated. Apassage 18 is formed in the breech block and a firing pin 19 is slidablymounted thereon, a coiled spring 20 being wound on the pin and serves tonormally retain the pin in proper position, a fiatted portion 21 beingformed intermediate the length of the said firing pin, and a pin number22 is adapted to be seated in a passage 23 formed in the breech block,the end thereof engaging said flatted portion and limiting the movementof the firing pin.

The underside of the end of the sleeve 8 is cut away as clearly shown at24 and a lug or way 25 is positioned therein, a finger 26 projects fromthe central portion thereof, and serves to regulate the shells extractedfrom and fed into the firing chamber in the barrel.

The breech block 9 is formed as clearly shown in Figure of the drawings,the one end 9 being recessed to receive the head of the shell, a shellextractor 27 being pivoted thereto by means of pin 28, while a coiledspring 29 serves to tension and hold the extractor in proper position,and the free end of the shell extractor is formed with a jaw whichengages the turned end of the cartridge. A groove 9 is formed in thebreech block to accommodate the member 25 which is tapered for adistance as shown at 25 said taper terminating in an abrupt shoulder 25,consequently when shell is in place in the barrel, the aw will engagethe turned edge thereof, and when the shell is discharged, the recoilforces the breech block rearwa-rdly, compressing the spring 146 thedischarged shell will simultaneously move with the breech block due tothe engagement of the shell extractor 27, and as the end of the shellstrikes the edge of the tapered way, it will be tilted as clearly shownin the dotted lines in Figure 8, and continued movement causes it tostrike the shoulder 25", throwing or discharging the empty shell fromthe chamber, and when the breech block has reached the end of thestroke, and the empty shell is extracted, the feed wing forces the nextload ed shell into the sleeve, the position of the finger t} preventingthe movements until such time the empty is discharged wiien the returnof the breech block forces it into the firing chamber, this finger 26regulates the shells fed into the sleeve and prevents jams, etc.

An opening 30 is provided in the frame to admit of the discharge of theempty shells, this opening being partially closed by means of a door 31,pivoted to the wall by means of a pin 32 and locked in position by aconventional spring actuated latch 33.

I wish to direct particular attention to the threaded screw member 4:which is formed similar to a screw driver, the screw 5 having a slottedhead adapted to fit the end of the screw 1, while the head of the screw4: is large and knurled, so that it can readily be manipulated by hand,conse quently no tools are required to disassemble the pistol. Vents 84are also provided in the firing chamber to relieve it of gases, etc.

The trigger mechanism comprises a hammer 35 set into a slotted apertureformed in the hand stock 3, and is mounted on a sleeve 36 through whichthe screw 4t extends, a bifurcated pin member 37 being pivotallyconnected to the hammer by means of the pin member 38, the free end ofthe pin 37 extending through an opening provided in the lug which isformed inte ral with the hand stock. A coiled spring member L0 isinterposed between the lug 39 and the bifurcated end of the pin 37. Theban mer is formed as clearly shown in Fig, 15, having a contact pointwhich is adapted to strike the end of the firing pin, and ratchet teeth35" which are adapted to be engaged by the trip dog member 41 forholding the hammer in cocked position.

The hand stock is formed with a l'orwardly extending portion as shown,and grips 42 are provided and held in position by the screw 42 and thehead of this screw is formed to allow it to be manipulated by the member4:.

A forked trip timing lever as is pivoted to the forwardly extendingstock portion at the point it which is slotted to receive it, the freeend of said member lying in close proximity to the trip .iinember whichis pivotal. connected to the trigger 46. The trigger is in turn pivoted"to the hand stock by means of the pin i7. The pin48 is pivotallyconnected to the trip dog 4-1, the free end being formed with ball jointadapted to be seated in a socket formed in the said trigger member, anda coiled spring 49 is intcr 'iosed between the said trip dog and thetrigger. The member 15 is provided with shouidcr intermediate its lengthwhich is adapted to be engaged by the lower end of the trip dog. andwhen the hammer is in position as shown by full lines in 1-5, and thetrig er is actuated, it will force the member rearwardly, which in turnrocks the trip dog on its pivot, and causes it to disengage from andrelease the hammer, a coiled spring 51 serves to hold the member up inproper position for engagement by the trip dog, and the Spring 49 servesto force the upper end of the trip dog against the hami-ner and alsoforces the trigger back to original position.

it will be noted that the member 43 extends above the face of the handstock. and as the breech block is forced rearwardly by the recoil, thelugs 10 will force the member i5 downwardly, disengaging the trip dog sothat any pull on the trigger will be ineffective, until such time as thebreech block has returned to its normal position, consequently, thepistol cannot be prematurely discharged as the breech block must be inproper position before the hammer can be released.

A. safety catch 52 is pivotally connected to the hand stock at the point53, the upper end being formed with a jaw which is adapted to engage thelugs 10 of the breech block for holding it in position to allow for clninc, etc... the other end of this catch is olfset to form a thumb restfor the proper manipulation of :the catch.

From the foregoing description it will be obvious that I have perfecteda new and novel automatic pistol which is rigidly constructed to admitof accurate shooting. which can be cocked without the use of both hands,and which cannot be prematurely dis charged.

hat I claim 1s:- 1. An automatic pistol comprising a in the frame,recoil actuated breech block having a recoil tension rod pivot/allyconec ted thereto, a spring tensioned feed wing loosely mounted on saidrod and adapted to force the shell into the firing chamber when thebreech block is actuated by the recoil.

8. An automatic pistol comprising a frame and a barrel threadedthereinto, a firing chamber, a sleeve in the frame, arecoil actuatedbreecl block slidably mounted therein, a recoil tension rod pivotallyconnected thereto, and a spring tensioned feed wingloosely mounted onthe said rod and adapted when the breech block is actuated to force ashell into the said sleeve.

l. An automatic pistol comprising a frame having a shell magazine formedintegiral therewith, a barrel threaded into said frame, a chamber. a sleve, anda recoil actuated breech block slidably mount-- ed the-rein,spring tensioned feed wing in the shell magazine and adapted when thebreech block is actuated to force a shell into the sleeve. and means onthe breech block for engaging the end of the shell.

5. An automatic pistol comprising); frame having a longitudinal bore, ashell magazine formed integral therewith, a barrel threaded. into saidframe and in ali-nement with said bore, a sleeve in the frame. and arecoil actuated breech block for feed ing the shells to the firingchamber, and means on the sleeve adapted to engage the end of thedischarged shell for ejecting; it from the pistol.

6. An automatic pistol comprising a frame havingga shell magazine formedin tegral therewith, a barrel threaded into said frame, a sleeve, arecoil actuated breech block slidablv mounted in said sleeve. a recoiltension rod connected thereto and a spring tensioned feed wing looselymounted thereon. a shell. extractor on the block adapted to engage theend of the shell, and a tapered lug in the sleeve adapted to tilt andeject the discharged shell "when the breech block is actuated by therecoil movement.

7 An automatic pistol comprising frame lnlvinc' a shell magazine formedintegral therewith, a gate opening into said chamber, a sleeve, a recoilactuated breech block slidably mounted therein and a recoil tension rodconnected thereto av spring actuated feed wing; loosely mounted on saidrod, shell engaging means on the breech block, and means on the sleevefor ejecting the shell as it moves with the breech block during therecoil movement.

8. An automatic pistol comprising a frame having a barrel detachablysecured thereto, a shell magazine formed integral therewith and alatched gated opening thereinto. a sleeve, a recoil actuated breechblock slidably mounted therein, a feed wing. and means on the breechblock adapted to engage the shell, a firing pin slidably mounted in theblock, and means on the sleeve for ejecting the shell when the breechblock is actuated by recoil movement.

9. An automatic pistol comprising a frame, a barrel attached thereto andprovided with a longitudinal bore, a sleeve, :1 recoil actuated breechblock slidably mounted therein, a recoil tension rod connected theretoand a spring actuated feed wing loosely mounted thereon, a firing pin inthe said block and means for limiting the movement thereof, a springactuated jaw on the end. of the breech block adapted to engage theshell, and an inclined lug terminating in an abrupt shoulder forejecting the shell when the breech block is actuated by recoil movement.

10.2111 automatic pistol comprising a frame, a hand stock detachablysecured thereto, a sleeve, and a recoil actuated breech block slidablymounted therein, a firing pin in the breech block, a trigger, a triplever pivotally secured thereto and a trip timing lever pivoted to thesaid frame and formed with a forked end adapted to engage the said tripwhen actuated by the breech block during the recoil movement.

11.. An automatic pistol comprising a frame having a shell chamberformed integral therewith, a spring actuated hammer, a spring actuatedtrip dog pivoted to the frame for holding said hammer in cockedposition, a trigger, a trip lever secured thereto and engaged by saidtrip dog, a trip timing lever, having a downwardly bent forked end and arecoil actuated breech block adapted to engage said trip timing lever torelease said trip dog during the recoil movement of the breech block.

12. An automatic pistol comprising a frame having a shell chamber formedintegral therewith, a spring actuated hammer, a trip dog having a pinpivotally connected thereto, the free end of which is loosely seated inthe trigger, a spring mounted thereon for holding said hammer in cockedposition, a trigger, a trip lever secured there to and engaged by saidtrip dog, a trip timing lever pivoted to the frame and formed with aforked downwardly bent free end adapted to straddle said pin, and arecoil actuated breech block adapted to engage said trip timing lever torelease said trip dog during the recoil movement of the breech block.

13. An automatic pistol comprising a frame having a hand stock securedthereto, a spring actuated hammer mounted thereon, a trip dog leverpivoted to the frame and a pin pivotally connected thereto, the free endbeing provided with a hall adapted to be seated in a pocket formed inthe trigger, a spring mounted thereon for holding said hammer in cockedposition, a trigger, a spring tensioned trip lever pivotally securedthereto, a forked trip timing lever above said trip lever, resilientmeans for holding said trigger in proper position, and a recoil actuatedbreech block having downwardly projecting lugs adapted to actuate saidtrip timing lever to disengage the trip lever during the recoil movementof the breech block.

1%. an automatic pistol comprising a frame having a shell magazineformed integral therewith a barrel threaded into the frame, a firingchamber, gas relief passages opening thereinto, a sleeve, and a recoilactuated breech block slidably mounted therein, and a feed wing mountedin the shell magazine.

15. An automatic pistol comprising a frame, having a shell magazineformed integral therewith, a telescoping sleeve nut fitted to the end ofsaid chamber, a breech block and a rod connected thereto and adapted toengage the end of the sleeve nut and a recoil spring mounted on the saidrod.

In testimony whereof I aflix my sign aturc.

PHILLIP R. KRAMER.

